Carbonoid's silicone sleeve casting mold for J-Head hot-ends

Cast your own silicone sleeves for your J-Head hot-ends!

3D printer parts and enhancements

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With this 3d printable mold you can cast silicone sleeves for J-Head hotends. There are STL molds provided for:

  1. Two casting molds with heater cartridge entering either 4 x from the right side or 2 x left / 2 x right
  2. Generic J-Head with heater cartridge but no cutouts for thermistor wires
  3. Generic J-Head MK V with heater and cutout for thermistor
  4. Generic J-Head MK 8 with heater and cutout for axial thermistor
  5. A STL model of the silicone sleeve 1.
  6. A small cup for mixing of the silicon casting slip

Materials and methods

4 x M3 x 20 mm screws
4 x M3 washer DIN 9021
4 x M3 threaded brass insert
4 x M4 threaded brass insert
1 x M4 x 50 mm screw (for extraction of the molds)

Have a look at the pictures how things fit together. Should be quite self-explanatory!

Mix 11g from each of the two silicone components in the cup for a total of 22g silicone.



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Mini img 0030Alex Skoruppa published this design ago